1. Bell Work
How does Gestalt psychology apply to vision?

2. “Touch”
Somatosensory Senses

3. Transduction Starts in bottom layer of skin – Dermis
Pressure and heat = mechanical energy
Lips & Fingertips have high concentrations
Message goes to spinal cord
Spinal cord to medulla to thalamus to parietal lobe

4. Somatosensory “Touch” Some areas more sensitive More nerve endings
Temperature
Pain
Pressure
Some areas more sensitive
More nerve endings

5. “Body” Senses

6. Close Your Eyes
You can tell you’re sitting up. You can tell you’re sitting down. You can tell if you’re laying on your back.

7. Vestibular Tells us where our body is oriented in space.
Our sense of balance.
Located in our semicircular canals in our ears.
Sense of balance and spatial orientation
Vertigo

9. Transduction
Movement of fluids in ear (canals) tells brain about rotation and position.

10. Close Your Eyes
Touch your nose
Touch your knees

11. Kinesthetic

12. Kinesthetic Tells where body parts are.
Receptors located in muscles and joints.

13. Transduction Sensory neurons in stretch receptors in muscles
Relays to spinal cord first

14. Crash Course
Crash Course Perception

15. Wrap Up
How is transduction different for body senses and “touch” senses?
When finished, work on review.